Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2017-10-03

Journal: JOURNAL OF EARTHQUAKE ENGINEERING

Included Journals: Scopus、EI、SCIE

Volume: 21

Issue: 7

Page Number: 1050-1069

ISSN: 1363-2469

Key Words: Shape Memory Alloy; Residual Displacement; Bridge Piers; Performance-Based Earthquake Engineering; Fragility Curves

Abstract: The application of superelastic Shape Memory Alloy (SMA) reinforcement in plastic hinge regions of bridge piers has been proven to reduce the residual displacement after a strong shaking owing to its unique shape recovery characteristics; however, the maximum deformation of the piers could increase due to the relatively lower modulus of elasticity of SMA bars and lower hysteretic energy dissipation capacity. In this context, this article applies a recently formulated probabilistic performance-based seismic assessment methodology that considers both the maximum and the residual deformation simultaneously to evaluate the performance of SMA reinforced bridge piers.